Hey! I don't think the game was popular enough for someone to try world record speedrun but I'm not sure :D
As for the endless mode records, check out comments here: https://armorgames.com/fling-game/18578 and scores here: https://gamejolt.com/games/Fling/387953/scores/394047/best
Some people seem to have gotten pretty far :)
What is your record?